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Excessive dampness can damage a home's walls, floors, carpets and even plumbing. It is especially prevalent in basements, basement apartments and storage areas.

A dehumidifier takes excessive moisture out of the air by blowing humid air over cold evaporator coils in a refrigerator system.

Quality is closely related to the amount of moisture a unit extracts during a 24-hour period. A high-capacity unit can remove up to 3-6 pints of moisture during 24 hours. Some larger units can remove up to 50-60 pints per day. Small units (25 pints per day) may not be able to dry the air satisfactorily all the time.

Moisture is normally collected in a pan, and the unit will automatically shut off when the pan is full to prevent an overflow.

Attaching a garden hose or bucket makes pan emptying easier on some models. If used in a basement, the unit may be drained directly into the floor drain.

A humidistat for turning the dehumidifier off or on in response to changes in moisture content of the air is necessary for efficient energy consumption.

A dehumidifier is no substitute for an air conditioner. Although both dehumidify, a dehumidifier tends to raise the temperature.

For best results, a dehumidifier should be operated with doors and windows closed and should be placed away from walls, furniture and other air flow obstructions.

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Title Annotation:Heating & Cooling
Publication:Hardware Retailing
Article Type:Brief article
Geographic Code:1USA
Date:Aug 1, 2006
Previous Article:Humidifiers.
Next Article:Air conditioners.

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